Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison on richness of microbiota in bile. Microbiota richness, represented as the number of (a) observed operational taxonomic units (OTU) and (b) Chao 1, was reduced in the recurrent CBD stone group (n = 11) compared with the non-recurrence group (n = 9).
